Clean up Pester tests

Tests/Format-Chronometer.Tests.ps1

@@ -0,0 +1,11 @@
+Describe "Function: Format-Chronometer" -Tag Build {
+
+    It "Does not throw" {
+        {$null | Format-Chronometer } | Should Not Throw
+    }
+
+    It "Can process a result object without throwing" {
+        $results = Get-Chronometer -Path $PSScriptRoot\..\ScratchFiles\example.ps1 -Script {. "$PSScriptRoot\..\ScratchFiles\example.ps1"}
+        $results | Format-Chronometer *>&1 | Should Not BeNullOrEmpty
+    }
+}